Hoping someone can help me diagnose an A/C problem with this car. For background, the A/C system was mostly replaced a few years ago (new compressor, dryer), and the monovalve is reatively new as well.
My A/C no longer turns on. If I push the auto-hi or auto-low buttons, I get no A/C and no blower. Same for the bi-level button. But if I hit the defrost button, the blower and the A/C come on, and it blows cold for a few minutes. If I then hit the bi-level button the fan blows, but no A/C, but very rarely the A/C will stay on. I will occasionally get the fan to work with with Auto Hi or Auto Low, but usually not.
Given that my car has relatively new components, is the problem most likely the push buttons on the dash? If so, is this something I can easily repair/replace myself? Could it be the A/C compressor switch on the dash? Does defrost override this switch?
Hoping for some help,
Rip